A collection of survey maps of Denver Township in Isabella County, Michigan. The first map is of the entirety of Denver Township. The township lines were measured in 1831; the subdivision lines were re-surveyed in 1850. Maps two through four are...

A collection of survey maps of Wise Township in Isabella County, Michigan. The first map is of the entirety of Wise Township. The township lines were measured in segments: the first portion in 1831 and the second in 1837. The subdivision lines were...

A survey map of Beaverton Township in Gladwin County, Michigan. The township lines were originally measured in 1831, but the subdivision lines had to be re-measured in 1850. Note: The City of Beaverton is located in portions of Sections 1 and 12.

A survey map of Sheridan Township in Clare County, Michigan. The township lines were originally measured in 1837 and the subdivision lines were measured in 1838. The whole of the township had to be re-measured in 1850.